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Currently, battery electric vehicles are the most popular EV commercially available. However, there is a growing interest for fuel cell electric vehicles (FCVs) because the latest battery technologies do not ensure a comparable range to that of conventional vehicles. Nevertheless, due to the unidirectional nature of energy transformation in a FCV, auxiliary storage systems are necessary to recover...
In a passive hybrid topology, the fuel cell is directly electrically coupled to the battery. Although no DC/DC converters are used, it is possible to control the fuel cell power by adjusting its operating pressure, and thus the power sharing between the fuel cell and the battery becomes actively controlled. Using this concept, simulations results show that the power demand of an electric vehicle is...
Recent trends shows that hydrogen powered fuel cell vehicles (FCVs) are gaining universal attention, because of the need for more fuel-efficient vehicles. Advancement in fuel-cell technology has ignited interest in all-electric propulsion systems. Regardless of some drawbacks in terms of number of electrical storage components being used and relatively larger capacity of on-board energy storage required,...
An experimental research platform based on dynamic testbed is developed and applied for fuel cell hybrid powertrain test and integration. Driver brake model is added to dynamic testbed to simulate brake process of electric vehicle. Test methods of sub systems and whole hybrid powertrain are investigated. Characteristic curve of sub parts and energy flow chart of hybrid powertrain are acquired through...
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